<template>
  <div class="login">

    <el-form ref="loginRef" :model="loginForm" :rules="loginRules" class="login-form">
      <h3 class="title">音乐后台管理系统</h3>

      <el-form-item prop="username">

        <el-input
          v-model="loginForm.username"
          type="text"
          size="large"
          auto-complete="off"
          placeholder="账号"
        >
          <template #prefix>
            <svg-icon icon="user"/>
          </template>
        </el-input>
      </el-form-item>
      <el-form-item prop="password">
        <el-input
          v-model="loginForm.password"
          type="password"
          size="large"
          auto-complete="off"
          placeholder="密码"
          @keyup.enter="handleLogin"
        >
          <template #prefix>
            <svg-icon icon="password"/>
          </template>
        </el-input>
      </el-form-item>

      <el-form-item prop="code">
        <el-input
          v-model="loginForm.code"
          size="large"
          auto-complete="off"
          placeholder="验证码"
          style="width: 63%"
          @keyup.enter="handleLogin"
        >
          <template #prefix>
            <svg-icon icon="validCode"/>
          </template>
        </el-input>
        <div class="login-code">
          <img :src="codeUrl" @click="getCode" class="login-code-img" alt=""/>
        </div>
      </el-form-item>
      <el-checkbox v-model="loginForm.rememberMe" style="margin:0 0 25px 0;">记住密码</el-checkbox>
      <el-form-item style="width:100%;">
        <el-button
          size="large"
          type="primary"
          style="width:100%;"
          @click.prevent="handleLogin"
        >
          <span>登 录</span>

        </el-button>

      </el-form-item>
    </el-form>
  </div>
</template>

<script setup>

import {ref} from 'vue'
import Cookies from 'js-cookie';
import {encrypt, decrypt} from '@/util/jsencrypt';
import requestUtil from '@/util/request'
import {ElMessage} from 'element-plus'
import store from '@/store'
import router from "@/router";

const codeUrl = ref("");

const loginRef = ref(null);

const loginForm = ref({
  username: "",
  password: "",
  rememberMe: false,
  code: "",
  key: ""
})

const loginRules = {
  username: [{required: true, trigger: "blur", message: "请输入您的账号"}],
  password: [{required: true, trigger: "blur", message: "请输入您的密码"}],
  code: [{required: true, trigger: "blur", message: "请输入验证码"}]
}

const getCode = async () => {

  let result = await requestUtil.get("sys/auth/captcha");
  console.log(result)
  loginForm.value.key = result.data.data.key;
  codeUrl.value = result.data.data.image;
}

const handleLogin = () => {

  loginRef.value.validate(async (valid) => {
    if (valid) {
      // 勾选了需要记住密码设置在 cookie 中设置记住用户名和密码
      if (loginForm.value.rememberMe) {
        Cookies.set("username", loginForm.value.username, {expires: 30});
        Cookies.set("password", encrypt(loginForm.value.password), {expires: 30});
        Cookies.set("rememberMe", loginForm.value.rememberMe, {expires: 30});
      } else {
        // 否则移除
        Cookies.remove("username");
        Cookies.remove("password");
        Cookies.remove("rememberMe");
      }
      try {
        let result = await requestUtil.post("sys/auth/login" ,loginForm.value);
        let data = result.data;
        if (data.code === 200) {
          console.log(data.data);
          const token = data.data.accessToken
          const menuList = data.data.menuList;
          const perms = data.data.perms;
          const currentUser = data.data.sysUser;

          // console.log("token="+token);
          store.commit('SET_TOKEN', token)

          store.commit('SET_MENU_LIST', menuList);

          store.commit('SET_PERMS', perms);

          store.commit("SET_USERINFO", currentUser);

          // bindRoute(menuList);

          await router.replace("/")
          // ElMessage.success("登录成功")
        } else {
          ElMessage.error(data.msg);
        }
      } catch (err) {
        console.log("error:" + err);
        ElMessage.error("服务器出错，请联系管理员！");
      }
    } else {
      console.log("验证失败")
    }
  })
}

function getCookie() {
  const username = Cookies.get("username");
  const password = Cookies.get("password");
  const rememberMe = Cookies.get("rememberMe");
  loginForm.value = {
    username: username === undefined ? loginForm.value.username : username,
    password: password === undefined ? loginForm.value.password : decrypt(password),
    rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
  };
}

getCode();
getCookie();
</script>

<style lang="scss" scoped>
a {
  color: white
}

.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/login-background.jpg");
  background-size: cover;
}

.title {
  margin: 0 auto 30px auto;
  text-align: center;
  color: #707070;
}

.login-form {
  border-radius: 6px;
  background: #ffffff;
  width: 400px;
  padding: 25px 25px 5px 25px;

  .el-input {
    height: 40px;


    input {
      display: inline-block;
      height: 40px;
    }
  }

  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 0;
  }

}

.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}

.login-code {
  width: 33%;
  height: 40px;
  float: right;

  img {
    cursor: pointer;
    vertical-align: middle;
  }
}

.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial, serif;
  font-size: 12px;
  letter-spacing: 1px;
}

.login-code-img {
  height: 40px;
  padding-left: 12px;
}


</style>
